Those new caps are fine and on a par with the CDE 381LX series.
http://www.cde.com/catalogs/381-383.pdf
The improved 381LR is the current standard of comparison for ripple current
ability. Cost is lower too.
http://www.cde.com/catalogs/381LR.pdf
The only way to completely test caps is in a PS running at its intended
voltage and current. You can do an approximation with a 0-450V bench supply
and what ever resistive load it can take safely and monitor case temperature
and current thru the cap AND at the load.
Carl
KM1H
----- Original Message -----
From: "Harald" <la6lha@mimer.no>
To: "Carl" <km1h@jeremy.mv.com>; <amps@contesting.com>
Sent: Monday, January 13, 2014 1:53 PM
Subject: Re: [Amps] Russian HV Supply Capacitors
Not any link making me wiser Carl, most links to ebay ads as you also
refer to, so they may be Chinese now converted to US Made to ease sales...
As most companies have a web page these days strange I did not find
anything for TCI at least indicating they produce el caps.
But most less expensive stuff come from China these days...and we are
happy to outsource our production to them still..AND lets not forget they
make quality products as well.
Maybe I did a mistake...I guess I will find out.
Is there a quick way to test these caps ?
I received another batch of 20 today from another source:
These Nippon Chemi Con caps:
http://www.chemi-con.co.jp/cgi-bin/CAT_DB/SEARCH/cat_db_al.cgi?e=e&j=k&h=EKMM401VSN471MA40S
Did I repeat the same mistake or do the group approve they can be used in
a planned 5KV 2A CCS supply?
Harald/LA6LHA
On 12.01.2014 22:00, Carl wrote:
Do you have any links to USA ones Harald other than JE/JEA which I
believe are Chinese with a new skin?
I found several links to Chinese TCI caps.
Carl
KM1H
----- Original Message ----- From: "Harald" <la6lha@mimer.no>
To: "Carl" <km1h@jeremy.mv.com>; <amps@contesting.com>
Sent: Sunday, January 12, 2014 1:58 PM
Subject: Re: [Amps] Russian HV Supply Capacitors
No date code found Carl...Regarding TCI I do not have a clue about
this vendor/manufacturer but I found some companies selling TCI
capasitors when searching the web. Pictured items I found indicated
TCI is Made in USA. But who knows these days...Maybe I will find out
how long they last one day..I have some spare..Anyone who wants some ?
Harald
LA6LHA
On 10.01.2014 03:34, Carl wrote:
What is the date code on those caps? And why cant I find any
information about TCI?
Carl
KM1H
----- Original Message ----- From: "Harald" <la6lha@mimer.no>
To: <amps@contesting.com>
Sent: Thursday, January 09, 2014 5:43 PM
Subject: Re: [Amps] Russian HV Supply Capacitors
My AMP Supply LK800 with the external Hi/Lo PAK are happy with the
capacitors I bought last year from K4POZ:
http://swap.qth.com/view_ad.php?counter=1106596
The price is in my humble opinion very good, and his service was
excellent.
You save a lot of money compared to the ones you refer to and even if
it is more work for you it takes much less space.
73 de LA6LHA/Harald
On 09.01.2014 19:49, radio@modesgate.com wrote:
To the un-initiated, these look like an elegant solution to my HV
smoothing capacitor requirement. Perhaps too elegant a solution.
Am I
missing something? If anyone has an opinion, or direct experience of
using these, commentary would be appreciated.
http://www.ebay.com/itm/60uF-4kV-6kV-HIGH-VOLTAGE-CAPACITORS-New-Lot-of-2pcs-hv-plasma-laser-tesla-/201017069009?pt=US_Ham_Radio_Amplifiers&hash=item2ecd8d0dd1
If they are any good, any info on cheaper sources (or any for sale in
the
UK) would also be good.
73
Denis MW0CBC / GW8OQV
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73 de LA6LHA,Harald
“That men do not learn very much from the lessons of history is the
most important of all the lessons that history has to teach.”
― Aldous Huxley, Collected Essays
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73 de LA6LHA,Harald
“That men do not learn very much from the lessons of history is the most
important of all the lessons that history has to teach.”
― Aldous Huxley, Collected Essays
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